diff --git a/src/filemanager/boxes.c b/src/filemanager/boxes.c
index 687442689..f0cd61e0f 100644
--- a/src/filemanager/boxes.c
+++ b/src/filemanager/boxes.c
@@ -868,7 +868,8 @@ const panel_field_t *
 sort_box (dir_sort_options_t * op, const panel_field_t * sort_field)
 {
     const char **sort_orders_names;
-    gsize sort_names_num, i;
+    gsize i;
+    gsize sort_names_num = 0;
     int sort_idx = 0;
     const panel_field_t *result = NULL;
 
diff --git a/src/viewer/actions_cmd.c b/src/viewer/actions_cmd.c
index 2e970d1ae..22807f0eb 100644
--- a/src/viewer/actions_cmd.c
+++ b/src/viewer/actions_cmd.c
@@ -220,7 +220,7 @@ static cb_ret_t
 mcview_handle_editkey (WView * view, int key)
 {
     struct hexedit_change_node *node;
-    int byte_val;
+    int byte_val = -1;
 
     /* Has there been a change at this position? */
     node = view->change_list;
diff --git a/src/viewer/coord_cache.c b/src/viewer/coord_cache.c
index 665e58a17..152ed9218 100644
--- a/src/viewer/coord_cache.c
+++ b/src/viewer/coord_cache.c
@@ -339,7 +339,7 @@ mcview_ccache_lookup (WView * view, coord_cache_entry_t * coord, enum ccache_typ
     nroff_state = NROFF_START;
     for (; current.cc_offset < limit; current = next)
     {
-        int c, nextc;
+        int c;
 
         if (!mcview_get_byte (view, current.cc_offset, &c))
             break;
@@ -365,6 +365,8 @@ mcview_ccache_lookup (WView * view, coord_cache_entry_t * coord, enum ccache_typ
         /* and override some of them as necessary. */
         if (c == '\r')
         {
+            int nextc = -1;
+
             mcview_get_byte_indexed (view, current.cc_offset, 1, &nextc);
 
             /* Ignore '\r' if it is followed by '\r' or '\n'. If it is